<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>user manager</title>
    <link rel="stylesheet" type="text/css" href="user.css"/>
    <script type="text/javascript" src="https://cdn.bootcss.com/jquery/3.2.1/jquery.js"></script>
</head>
<body>
    <button class="btn1">loadUser</button>
    <div>
        <table>
            <thead><tr><th>ID</th><th>name</th><th>age</th><th>Oprate</th></tr></thead>
            <tbody class="content">
                
            </tbody>
        </table>
    </div>
</body>
<script type="text/javascript" src="user1.js"></script>
</html>